85155743 has 2 divisors, whose sum is σ = 85155744. Its totient is φ = 85155742.

The previous prime is 85155713. The next prime is 85155769. The reversal of 85155743 is 34755158.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85155743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85155697 and 85155706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85155713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42577871 + 42577872.

It is an arithmetic number, because the mean of its divisors is an integer number (42577872).

Almost surely, 2^85155743 is an apocalyptic number.

85155743 is a deficient number, since it is larger than the sum of its proper divisors (1).

85155743 is an equidigital number, since it uses as much as digits as its factorization.

85155743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84000, while the sum is 38.

The square root of 85155743 is about 9227.9869419067. The cubic root of 85155743 is about 439.9513427600.

The spelling of 85155743 in words is "eighty-five million, one hundred fifty-five thousand, seven hundred forty-three".